[sw/silicon_creator] Minor cleanups to shutdown code.

Follow up addressing comments on PR #8289.

Signed-off-by: Michael Munday <mike.munday@lowrisc.org>
diff --git a/sw/device/silicon_creator/lib/shutdown.c b/sw/device/silicon_creator/lib/shutdown.c
index f29e379..dac24e9 100644
--- a/sw/device/silicon_creator/lib/shutdown.c
+++ b/sw/device/silicon_creator/lib/shutdown.c
@@ -239,7 +239,7 @@
     case kLcStateTestUnlocked6:
     case kLcStateTestUnlocked7:
     case kLcStateRma:
-      // No error redaction in RAW, TEST_UNLOCKED and RMA states.
+      // No error redaction in TEST_UNLOCKED and RMA states.
       return kShutdownErrorRedactNone;
     case kLcStateProd:
     case kLcStateProdEnd: